电视购物是一种电视业、企业、消费者三赢的营销传播模式,但国内电视购物行业缺少相应的行业规范,给虚假宣传提供了空间。新通过的《电视购物诚信服务体系评价指南》对电视购物的经营提出了基本要求、监管、评价标准等。《指南》的出台( )
①明确了诚信是电视购物企业经营的首要目的
②为构建电视购物诚信服务体系提供制度依据
③有利于加强电视行业自律,维护市场秩序
④能保证经济活动参加者自觉遵守市场道德
A:①③
B:①④
C:②③
D:②④
图甲、乙、丙分别表示某种二倍体生物的三个正在进行分裂的细胞.请据图回答下列问题:
(1)该生物体细胞中染色体数目是____ .
(2)图中属于减数分裂的细胞是____ 和____ .
(3)含有同源染色体的细胞是____ 和____ .
(4)丙细胞中含有____ 条染色单体.
Today is Mike's surprise party. His parents are at home. They are making a ____ and some cookies. ____cookie has a letter. His parents don't ____ him about the party. The party ____ at 5:00. Lily comes to Mike's home before 4:00. She is ____.
Mike is shopping for gifts. He needs gifts for everyone. At 4:30, he arrives home. How surprised he is! ____of the people have a good time.